diff --git a/discord/ext/commands/errors.py b/discord/ext/commands/errors.py
index 5f6da41a5..c51a42b74 100644
--- a/discord/ext/commands/errors.py
+++ b/discord/ext/commands/errors.py
@@ -1084,7 +1084,7 @@ class ExtensionNotFound(ExtensionError):
     """
 
     def __init__(self, name: str) -> None:
-        msg = f'Extension {name!r} could not be loaded.'
+        msg = f'Extension {name!r} could not be loaded or found.'
         super().__init__(msg, name=name)